2,3-Difluoro-6-(difluoromethyl)-5-nitropyridine
2,3-Difluoro-5-(difluoromethyl)-6-nitropyridine
2,3-Difluoro-4-(difluoromethyl)-6-nitropyridine
3,5-Difluoro-4-(difluoromethyl)-2-methylpyridine
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